Dimension search queries

The Drs URL query parameter sets an EQL filter for a dimension search.

This filter restricts the scope of the records that will be considered for a dimension search. Only dimension values represented on at least one record satisfying the filter are returned as search results. For details on how dimension search works, see the Basic Development Guide.

Note the following about the Drs parameter:

The syntax of Drs is identical to that of the Nrs parameter.
Drs is dependent on the D parameter.

Because the Drs syntax is identical to that of Nrs, you can use the various EQL requests that are documented earlier in this section.

The following example illustrates a dimension search query using an EQL filter:

N=0&D=novel&Drs=collection()/record[author_deceased = "false"]

The query uses the D parameter to specify novel as the search term, while the Drs parameter sets a filter for records in which the author_deceased property is set to false (that is, records of deceased authors).